Grapefruit

Case studies

Work that moved the numbers

AI models, digital platforms and campaigns Grapefruit has built for enterprises in automotive, banking, energy, consumer brands and beyond. Each case states who the client was, what we delivered, and the result, with numbers wherever the client has shared them.

Case studies
16
Industries
9
With measured outcomes
5
years shipping digital products
26+

Featured AI case study

UNTOLD · Entertainment & Events · 2025

UNTOLD: fine-tuned GPT-4.1 models cut newsletter creation time by 80%

In 2025, Grapefruit built two custom GPT-4.1 models for UNTOLD, Romania's largest live events organizer, fine-tuned on its newsletter archive in Romanian and English. The AI MVP shipped in one week and cut newsletter creation time by 80%, while a segmented campaign strategy across five ad platforms reached hundreds of thousands of fans.

faster newsletter creation
80%faster newsletter creation
from kickoff to AI MVP
1 weekfrom kickoff to AI MVP
fine-tuned language models (Romanian, English)
2fine-tuned language models (Romanian, English)
Read the UNTOLD case study
UNTOLD project key visual

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Archive

From the archive

Older projects and concept work, kept for the thinking behind them. Dated so you know what you are reading.

In their words

What clients said about the work

  • “Our focus is to become the first fully integrated energy management platform, providing deep insights to utilities for running their businesses more efficiently in the new digital era and for a more sustainable future.”
    Matei StratanCEO, Ogre.aiRead the case study

  • 700k+ visitors

    “Moreover, Grapefruit’s team came up with creative and practical solutions that were cost-effective and got us great results. Communication was always clear and efficient. They delivered exactly what we wanted and met our established KPIs.”
    George SolomonCommunication & CSR Director, E.ONRead the case study
  • “The migration of the website was both a challenging and complex project and the support provided by the Grapefruit team was very good, and they were hands-on through the entire technical process. Also, the fact that there was an Agile project management approach in place from start to the end, made the entire way of working efficient and clear from one iteration to the other and I really appreciated the collaboration with them.”
    Tiberiu ArghirDigital Marketing Specialist, Garanti BBVARead the case study
  • “We created the Money School platform for all those people who need practical instruments and resources to learn how to better plan their money and what they can do starting from tomorrow to become more financially intelligent.”
    Claudia OprescuMoney School Program Coordinator, BCR Școala de BaniRead the case study

  • 17M coffee cups

    “We’ve always wanted to reach out to the NESCAFÉ Alegria consumers through a unique campaign that would strengthen our relationship with the coffee lovers. Therefore, we combined the product package and our digital assets to give consumers the means to make the entire country smile while enjoying NESCAFÉ Alegria. We believe that 17 million coffee cups bearing the #goodthoughts messages is not a small number.”
    Corina IordacheDigital Communication Specialist, NestléRead the case study
  • “Grapefruit’s team of specialists quickly understood our needs and objectives, providing us with a communication strategy that incorporated best practices and tools, tailored to our target audience. This contributed significantly to increasing INGENIUM’s visibility both nationally and internationally.”
    Irina LunguPro-rector of International Relations, Gheorghe Asachi Technical University of Iasi (TU Iasi)Read the case study

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